It is unfortunately the element in the network with the shortest service lifecycle so the most likely to come under scrutiny for replacement. For ex my original core metaswitch I recently phased out survived 3 generations of SBC's. Each generation came at not insignificant hardware cost. While you say it may be a poor standard bearer it is a lever by which solution vendors can shoe-horn their whole NFV ecosystem into the carrier from the edge inward with some promise of a future-proofed purchase (in the form of licensing). On 4/6/2016 8:08 PM, Alex Balashov wrote:
On 04/06/2016 10:54 PM, Ryan Delgrosso wrote:
an SBC ... is a demarcation and control point between network segments where you can inject interworking and business logic.
Absolutely, at >= Layer 5.
If it's news to anyone here that you can virtualise applications, they've got some catching up to do.
Anyway, my argument wasn't that SBCs serve no valid purposes. You've done a good job of outlining them. Instead, my point was that they, of all things, are a poor standard bearer for the NFV marketing-gasm.
-- Alex